Quaternary - Wikipedia
网页The Quaternary Period follows the Neogene Period and extends to the present. The Quaternary covers the time span of glaciations classified as the Pleistocene, and includes the present interglacial time-period, the Holocene.
Quaternary | Definition, Period, Climate, Animals, Plants, Timeline ...
网页Quaternary, in the geologic history of Earth, a unit of time within the Cenozoic Era, beginning 2,588,000 years ago and continuing to the present day. The Quaternary has been characterized by several periods of glaciation (the “ice ages” of common lore), when ice sheets many kilometres thick have.
Quaternary Period—2.58 MYA to Today - U.S. National Park Service
网页2023年4月27日 · The Quaternary Period is famous for the many cycles of glacial growth and retreat, the extinction of many species of large mammals and birds, and the spread of humans. The Quaternary Period is divided into two epochs, from youngest to oldest: the Holocene and Pleistocene.
Quaternary Period Information and Facts - National Geographic
网页The quaternary period began 2.6 million years ago and extends into the present. Climate change and the developments it spurs carry the narrative of the Quaternary, the most recent 2.6...
Quaternary Period: Climate, Animals & Other Facts - Live Science
网页2014年2月6日 · The Quaternary Period is a geologic time period that encompasses the most recent 2.6 million years — including the present day. It has involved dramatic climate changes.
Quaternary science - Wikipedia
网页Quaternary science is the subfield of geology which studies the Quaternary Period commonly known as the ice age. The Quaternary Period is a time period that started around 2.58 million years ago and continues today.
Pleistocene - Wikipedia
网页During the 2.5 million years of the Pleistocene, numerous cold phases called glacials (Quaternary ice age), or significant advances of continental ice sheets, in Europe and North America, occurred at intervals of approximately 40,000 to 100,000 years.
Quaternary Period summary | Britannica
网页The Quaternary follows the Neogene Period and is the most recent of the three periods of the Cenozoic Era. The Quaternary is subdivided into the Pleistocene Epoch and the Holocene Epoch and is characterized by major cyclical changes of climate on a global scale.
Quaternary - Climate, Flora, Fauna | Britannica
网页It is a basic tenet of ecology that disturbance increases diversity and ultimately leads to evolutionary pressures. The Quaternary is replete with forces of disturbance and evidence for evolution in many living systems.
Quaternary Period - an overview | ScienceDirect Topics
网页The Quaternary Period is defined as the most recent and shortest geological period characterized by significant climate instabilities, including multiple glacial and interglacial stages with cyclicities of 23, 41, and 100 kyr.